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Surf Forecasts:
Porth Ceriad surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 11 pm Monday 15 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Ceriad sea temperature is
10.0° C
(Which is normal for this time of year)How big are the waves at Porth Ceriad today?
The current surf forecast for Porth Ceriad at 6AM is: 0.6m 8s primary swell from a Southwest direction and 0.2m 16s secondary swell from a West-southwest direction (forecast issued at 11:00pm December 15). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 2ft (0.6m) | 8s |
| Afternoon (16 Dec) | 1ft (0.3m) | 14s |
| Evening (16 Dec) | 2ft (0.6m) | 8s |
Table - waves today at Porth Ceriad. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 8 | 8 | 8 | 14 | 14 | 14 | 8 | 15 | 5 | 7 | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 21 | 21 | 20 | 19 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 97 | 91 | 57 | 55 | 42 | 37 | 38 | 39 | 50 | 44 | 91 | 427 | 801 | 1009 | 1382 | 1831 | 1476 | 851 | 557 | 502 | 483 | 446 | 424 | 340 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | cross- off | glass | cross- on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | on |
High Tide / height (m) | 5:37AM 3.35 | 5:54PM 3.44 | 6:18AM 3.53 | 6:37PM 3.56 | 6:57AM 3.71 | |||||||||||||||||||
Low Tide / height (m) | 12:13AM 1.10 | 12:38PM 1.17 | 12:59AM 1.02 | 1:23PM 1.01 | 1:39AM 0.93 | 2:03PM 0.86 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:23 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - | 8:25 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - |
 | | | |  |  | | |  | | | | | |  |  | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 11 | 3 | - | - | - | - | - |
| Temp. °C | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 10 | 9 | 9 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 7 | 7 | 5 | 4 | 5 | 5 | 4 | 6 | 7 | 5 | 4 | 1 | -1 | 0 | -2 | -2 | -1 | 1 | 4 | 7 | 6 | 6 | 5 | 1 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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